/**
 * 
 * @brief  bsp_spi.c
 * @param  None
 * 
 * @author xhq
 * @date   2024/11/05
 * 
 */
/* include */
#include "bsp_check.h"

/* define */
#define BSP_CHECK_DEBUG       0

#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif

/* typedef */

/* global varibles */
struct bsp_check_type g_bsp_check_type = {
    .init_flag          = 1,
    .init               = NULL,
    .p_bcc_calculate    = bsp_bcc_calculate,
    .p_bcc_check        = bsp_bcc_check,
    .p_crc_calculate    = bsp_crc16_xmodem_calculate,
    .p_crc_check        = bsp_crc16_xmodem_check,
};

#define CRC16_MODE
#ifdef CRC16_MODE
/* ----- CRC-16/XMODEM校验表 ----- */
static const uint16_t  crctab[256] = {
    0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
    0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF,
    0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6,
    0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE,
    0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485,
    0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D,
    0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4,
    0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC,
    0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
    0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B,
    0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12,
    0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A,
    0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41,
    0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49,
    0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70,
    0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78,
    0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F,
    0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
    0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E,
    0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256,
    0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
    0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
    0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
    0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
    0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
    0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
    0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
    0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
    0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
    0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
    0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
    0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
};
#else
/* ----- CRC-32/0xedb88320校验表 ----- */
static const uint32_t  crctab[256] = {0};
#define xcrc32(crc,cp) (crctab[(crc>>8)^cp]^(crc<<8))

#endif

/* define */
#define xcrc(crc,cp) (crctab[(crc>>8)^cp]^(crc<<8))

/* function */
/*****************************************************************************/
/**
*
* 计算异或校验 BCC
*
* @param    pbuf        待计算校验数据地址
*           len         计算数据长度（单位：字节Byte）
*
* @return   l_u8_res         返回计算校验结果
*
* @note     None.
*
*****************************************************************************/
uint8_t bsp_bcc_calculate(uint8_t * pbuf, uint32_t len)
{
    uint8_t l_u8_res = 0;

    while (len--)
    {
        l_u8_res ^= *pbuf++;
    }

    return l_u8_res;
}
/*****************************************************************************/
/**
*
* 校验异或校验 BCC
*
* @param    pbuf        待计算校验数据地址
*           len         计算数据长度（单位：字节Byte）
*
* @return   l_u8_res         返回计算校验结果
*
* @note     None.
*
*****************************************************************************/
uint8_t bsp_bcc_check(uint8_t *pbuf, uint32_t len)
{
    uint8_t l_u8_res = 0;

    while(len--)
    {
        l_u8_res ^= *pbuf++;
    }

    if (*(pbuf) == l_u8_res)
    {
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}
/*****************************************************************************/
/**
*
* 实现CRC-16/XMODEM  x16+x12+x5+1 的计算，并将计算结果添加到数组尾部，并返回
*
* @param    pbuf        待计算校验数据地址
*           len         计算数据长度（单位：字节Byte）
*
* @return   l_u8_res         返回计算校验结果
*
* @note     None.
*
*****************************************************************************/
uint16_t bsp_crc16_xmodem_calculate(uint8_t * pbuf, uint16_t len)
{
    uint16_t l_u16_crc_value = 0;
    uint16_t l_u16_idx;

    for (l_u16_idx = 0; l_u16_idx < len; l_u16_idx++)
    {
        l_u16_crc_value = xcrc(l_u16_crc_value,*pbuf);
        pbuf++;
    }

    *pbuf = (l_u16_crc_value & 0x00ff);
    pbuf++;
    *pbuf = (l_u16_crc_value >> 8);

    return l_u16_crc_value;
}
/*****************************************************************************/
/**
*
* 实现CRC-16/XMODEM  x16+x12+x5+1 的校验，判断校验结果是否正确
*
* @param    pbuf        待计算校验数据地址
*           len         计算数据长度（单位：字节Byte）
*
* @return   l_u8_res         返回校验结果0--失败,1--成功
*
* @note     None.
*
*****************************************************************************/
uint8_t bsp_crc16_xmodem_check(uint8_t *pbuf, uint16_t len)
{
    uint16_t l_u16_crc_value = 0;
    uint16_t l_u16_idx;

    for (l_u16_idx = 0; l_u16_idx < len; l_u16_idx++)
    {
        l_u16_crc_value = xcrc(l_u16_crc_value,*pbuf);
        pbuf++;
    }
    if ((*pbuf) == (l_u16_crc_value & 0x00ff))
    {
        pbuf++;
        if ((*pbuf) == (l_u16_crc_value >> 8))
        {
            return TRUE;
        }
    }
    return FALSE;
}

